Complete denture

Abstract

The utility model relates to the technical field of oral cavity restoration, in particular to a complete denture which comprises a machined primary blank, a glue filling embedding groove is formed in the machined primary blank, and a denture body is connected to the side, away from the glue filling embedding groove, of the machined primary blank; the metal reinforcing layer is located in the glue filling embedding groove, and the metal reinforcing layer is connected with the machining primary blank; the glue filling resin layer is located on the side, away from the machining primary blank, of the metal reinforcing layer, and the glue filling resin layer is used for filling the glue filling embedding groove; the complete denture has the advantages that the complete denture body can be fixed by machining the primary blank, the mechanical property of the complete denture can be improved by the metal reinforcing layer, and the metal reinforcing layer can be coated by the glue-filled resin layer so as to ensure the position stability of the metal reinforcing layer.

Description

Technical Field

[0001] The present application relates to the technical field of oral restoration, and in particular to a complete denture. Background Art

[0002] Complete dentures are a standard restorative treatment for edentulous patients. They are removable prostheses that use artificial materials to replace the missing maxillary or mandibular dentition and associated tissue. They adhere to the maxillary and mandibular alveolar ridges through the close fit of the denture base and the edentulous mucosal tissue, as well as the adsorption force and atmospheric pressure generated by the edge seal. This restores the patient's missing tissue and facial appearance, as well as their chewing and pronunciation functions. The mucoperiosteum and bone tissue beneath the denture base bear the occlusal pressure of the denture.

[0003] The existing methods for preparing full dentures are mainly the following: the first is the traditional manual production method: it is made through plaster models and wax models, and then the final denture is obtained through hot pressing; the second is the digital production method: through three-dimensional scanning of the patient's oral condition, a digital model is generated, and then the denture is made using CAD / CAM technology; such as an embedded full denture disclosed in the prior art, including an upper jaw, a mounting frame is provided on the surface of the upper jaw, mounting blocks are evenly provided at the edge positions of the mounting frame, connecting grooves are evenly provided on the upper side of the mounting block, a fixed base is clamped inside the mounting block, connecting blocks are evenly provided on the surface of the fixed base, an elastic filling pad is provided inside the mounting block, and a denture body is installed on the bottom side of the fixed base.

[0004] Regarding the above-mentioned existing technologies, there is generally a problem of poor mechanical properties when preparing complete dentures. Utility Model Content

[0005] In order to improve the mechanical properties of complete dentures, the present application provides a complete denture.

[0006] The complete denture provided in this application adopts the following technical solution:

[0007] A complete denture comprising

[0008] A machined preform is formed with a glue-filling embedding groove, and a denture body is connected to a side of the machined preform away from the glue-filling embedding groove;

[0009] a metal reinforcement layer, the metal reinforcement layer being located in the glue-filled embedding groove and connected to the machined preform;

[0010] A filling resin layer is located on a side of the metal reinforcement layer away from the machined preform, and is used to fill the filling embedding groove.

[0011] By adopting the above technical solution, the patient's oral condition is first obtained through 3D scanning, and a digital model is generated based on the scan data. A resin machined blank is then fabricated based on the digital model. Next, a resin-filled embedding groove is reserved in the machined blank, and multiple positioning posts are provided on the contact surface of the embedding groove. A metal reinforcement layer is then placed into the embedding groove to ensure that the metal reinforcement layer is stably fixed to the machined blank. The embedding groove is then filled with resin until the resin-filled layer completely embeds the embedding groove and protrudes a certain height above the tissue surface to facilitate subsequent machining. After the embedding and curing process, the top surface of the embedding layer is further machined based on the 3D data model to ensure that it matches the data model. Finally, precision machining is performed to align the resin-filled layer with the digitally machined base layer, eliminating any potential steps. The designed full denture uses the machined blank to secure the denture body, while the metal reinforcement layer improves the mechanical properties of the full denture and is coated with the resin layer to ensure the metal reinforcement layer's positional stability.

[0012] In a specific embodiment, a plurality of through holes are opened on the metal reinforcement layer to form a mesh structure.

[0013] By adopting the above technical solution, the through holes designed on the metal reinforcement layer can first pass through the through holes to form a structural connection with the frame blank when the filling resin layer is filled, thereby improving the stability of the metal reinforcement layer, and can also reduce the material cost of the metal reinforcement layer while ensuring the mechanical performance strengthening capability of the metal reinforcement layer.

[0014] In a specific embodiment, a plurality of positioning posts are connected to the machined preform, and the positioning posts can extend into through holes provided on the metal reinforcement layer.

[0015] By adopting the above technical solution, the designed positioning column can maintain the position stability of the metal reinforcement layer during the filling process of the resin layer, avoiding the resin filling impacting the metal reinforcement layer and causing the metal reinforcement layer to be dislocated.

[0016] In a specific embodiment, the diameter of the through hole is between 1 mm and 3 mm.

[0017] By adopting the above technical solution, the through hole with a diameter between 1 mm and 3 mm is designed, which can reduce the material cost of the metal reinforcement layer while ensuring the mechanical performance enhancement capability of the metal reinforcement layer.

[0018] In a specific embodiment, the thickness of the machined blank is between 0.5 mm and 1 mm.

[0019] By adopting the above technical solution, the thickness of the designed machined blank is between 0.5 mm and 1 mm, which can save production costs while ensuring the structural strength of the frame blank and ensure the patient's comfort.

[0020] In a specific embodiment, the thickness of the metal reinforcement layer is between 0.3 mm and 0.8 mm.

[0021] By adopting the above technical solution, a metal reinforcement layer with a thickness between 0.3 mm and 0.8 mm is designed, which can save production costs while ensuring that the mechanical properties of the metal reinforcement layer are enhanced.

[0022] In a specific embodiment, the thickness of the filling resin layer is between 0.3 mm and 0.8 mm.

[0023] By adopting the above technical solution, the designed resin-filled layer with a thickness between 0.3 mm and 0.8 mm can save production costs while achieving shielding of the metal reinforcement layer and ensure patient comfort.

[0024] In a specific embodiment, the material of the metal reinforcement layer is set to titanium or titanium alloy or cobalt-chromium alloy.

[0025] By adopting the above technical solution, the designed material is set as a metal reinforcement layer of titanium or titanium alloy or cobalt-chromium alloy. Since the material itself has good biocompatibility, the patient's adaptability to complete dentures can be improved.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The designed full denture can be used to fix the denture body through machining the rough blank, the mechanical properties of the full denture can be improved through the metal reinforcement layer, and the metal reinforcement layer can be coated with the filling resin layer to ensure the position stability of the metal reinforcement layer.

[0028] 2. The designed full denture, through the through holes opened on the metal reinforcement layer, can firstly establish a structural connection with the frame blank through the through holes when the filling resin layer is filled, thereby improving the stability of the metal reinforcement layer, and can also reduce the material cost of the metal reinforcement layer under the premise of ensuring the mechanical performance enhancement capability of the metal reinforcement layer.

[0029] 3. The designed full denture can maintain the position stability of the metal reinforcement layer during the filling process of the resin layer through the positioning column, avoiding the resin filling impacting the metal reinforcement layer and causing the metal reinforcement layer to be dislocated. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1It is a structural diagram of the preliminary frame of the complete denture in the embodiment of the present application.

[0031] Figure 2 It is a schematic diagram of the structure of the reinforced metal mesh in the complete denture according to the embodiment of the present application.

[0032] Figure 3 It is a structural diagram of the complete denture according to an embodiment of the present application.

[0033] Figure 4 yes Figure 3 Schematic diagram of the explosion structure.

[0034] Explanation of the accompanying reference numerals: 1. Machined blank; 11. Glue-filled embedding groove; 2. Denture body; 3. Metal reinforcement layer; 31. Through hole; 4. Glue-filled resin layer; 5. Positioning column. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-4 This application is described in further detail.

[0036] The embodiment of the present application discloses a complete denture.

[0037] Reference Figure 1 A complete denture includes a machined rough draft 1 and a denture body 2. A glue-filling embedding groove 11 is formed on the top wall of the machined rough draft 1. The shape of the glue-filling embedding groove 11 is obtained according to the oral condition of the patient after three-dimensional scanning. The denture body 2 is bolted to the machined rough draft 1, and the denture body 2 is located on the side of the frame rough draft away from the glue-filling embedding groove 11. The material of the machined rough draft 1 is preferably resin; the machined rough draft 1 can be used to fix the denture body 2.

[0038] Reference Figure 1 Furthermore, the thickness of the machined blank 1 is between 0.5 mm and 1 mm. By machined blank 1 with a thickness between 0.5 mm and 1 mm, the production cost can be saved while ensuring the structural strength of the frame blank and ensuring the comfort of the patient. In this embodiment, the thickness of the machined blank 1 is preferably 0.8 mm.

[0039] Reference Figure 2 In order to enhance the mechanical properties of the machined blank 1, the complete denture also includes a metal reinforcement layer 3. The metal reinforcement layer 3 is located in the glue-filled embedding groove 11, and the shape of the metal reinforcement layer 3 is adapted to the bottom wall shape of the glue-filled embedding groove 11. In order to facilitate the placement of the metal reinforcement layer 3 in the glue-filled embedding groove 11, the size of the metal reinforcement layer 3 is slightly smaller than the size of the glue-filled embedding groove 11. In this application, the marginal size of the metal reinforcement layer 3 can be the marginal size of the glue-filled embedding groove 11. The numerical range is between 0.2 mm and 1 mm. In this embodiment, the size difference is preferably 0.5 mm. The metal reinforcement layer 3 can improve the mechanical properties of the complete denture.

[0040] Reference Figure 2 The thickness of the metal reinforcement layer 3 is between 0.3 mm and 0.8 mm, which can save production costs while ensuring the mechanical properties of the metal reinforcement layer 3 are enhanced; and the material of the metal reinforcement layer 3 is set to titanium or titanium alloy or cobalt-chromium alloy or other metal materials with good biocompatibility to improve the patient's adaptability to complete dentures; in this embodiment, the material of the metal reinforcement layer 3 is preferably titanium alloy.

[0041] Reference Figure 3 In order to wrap the metal reinforcement layer 3 and prevent the metal reinforcement layer 3 from directly contacting the patient's oral environment, the complete denture also includes a filling resin layer 4. The filling resin layer 4 is located on the side of the metal reinforcement layer 3 away from the machined preform 1, and the filling resin layer 4 is used to fill the filling embedding groove 11. After the filling resin layer 4 fills the filling embedding groove 11, the metal reinforcement layer 3 is completely covered; the metal reinforcement layer 3 can be coated by the filling resin layer 4 to ensure the position stability of the metal reinforcement layer 3.

[0042] Reference Figure 3 Furthermore, the thickness of the filled resin layer 4 is between 0.3 mm and 0.8 mm, which can save production costs while shielding the position of the metal reinforcement layer 3 and ensure the comfort of the patient.

[0043] Reference Figure 4 The metal reinforcement layer 3 is provided with a plurality of through holes 31 to form a mesh structure. The through holes 31 provided on the metal reinforcement layer 3 can firstly pass through the through holes 31 to form a structural connection with the frame blank when the filling resin layer 4 is filled, thereby improving the stability of the metal reinforcement layer 3 and reducing the material cost of the metal reinforcement layer 3 while ensuring the mechanical performance reinforcement capability of the metal reinforcement layer 3. Furthermore, the diameter of the through holes 31 is between 1 mm and 3 mm, thereby reducing the material cost of the metal reinforcement layer 3 while ensuring the mechanical performance reinforcement capability of the metal reinforcement layer 3.

[0044] Reference Figure 4 Furthermore, in order to maintain the position stability of the metal reinforcement layer 3 during the filling process of the resin layer 4 and prevent the resin filling from impacting the metal reinforcement layer 3 and causing the metal reinforcement layer 3 to be dislocated, a plurality of positioning posts 5 are integrally formed on the machined preform 1. The positioning posts 5 are located in the resin-filled embedded groove 11 and can extend into the through hole 31 opened on the metal reinforcement layer 3. In this application, the outer diameter of the positioning post 5 is smaller than the inner diameter of the through hole 31 to ensure that the metal reinforcement layer 3 can smoothly enter the resin-filled embedded groove 11.

[0045] The implementation principle of a complete denture in an embodiment of the present application is as follows: first, the patient's oral condition is obtained through three-dimensional scanning, and a digital model is generated based on the scan data. Then, a resin machined blank is made based on the digital model. Next, a glue-filled embedding groove 11 is reserved on the machined blank, and a plurality of positioning posts 5 are set on the contact surface of the glue-filled embedding groove 11. Then, a metal reinforcement layer 3 is placed in the glue-filled embedding groove 11 to ensure that the metal reinforcement layer 3 can be stably fixed on the machined blank. After that, glue is filled in the glue-filled embedding groove 11 so that the glue-filled resin layer 4 completely embeds the glue-filled embedding groove 11 and is a certain height higher than the tissue surface for subsequent machining. After embedding and curing, the top surface of the filling embedding layer is further processed according to the three-dimensional data model to ensure that it matches the data model. Finally, through precision processing, the filling resin layer 4 and the base digital processing layer are in the same plane to eliminate any possible steps; the machined rough draft 1 can be used to fix the denture body 2, and the metal reinforcement layer 3 can improve the mechanical properties of the full denture. The metal reinforcement layer 3 can be coated with the filling resin layer 4 to ensure the positional stability of the metal reinforcement layer 3.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A complete denture, characterized by: include A machined embryo (1), wherein a glue-filling embedding groove (11) is formed on the machined embryo (1), and a denture body (2) is connected to a side of the machined embryo (1) away from the glue-filling embedding groove (11); A metal reinforcement layer (3), the metal reinforcement layer (3) is located in the glue-filled embedded groove (11), and the metal reinforcement layer (3) is connected to the machined preform (1); A glue-filled resin layer (4), the glue-filled resin layer (4) is located on a side of the metal reinforcement layer (3) away from the machined preform (1), and the glue-filled resin layer (4) is used to fill the glue-filled embedding groove (11).

2. The complete denture according to claim 1, characterized in that: The metal reinforcement layer (3) is provided with a plurality of through holes (31) to form a mesh structure.

3. The complete denture according to claim 2, wherein: A plurality of positioning posts (5) are connected to the machined embryo (1), and the positioning posts (5) can extend into through holes (31) provided on the metal reinforcement layer (3).

4. The complete denture according to claim 2, wherein: The diameter of the through hole (31) is between 1 mm and 3 mm.

5. The complete denture according to any one of claims 1 to 4, characterized in that: The thickness of the machined blank (1) is between 0.5 mm and 1 mm.

6. The complete denture according to any one of claims 1 to 4, characterized in that: The thickness of the metal reinforcement layer (3) is between 0.3 mm and 0.8 mm.

7. The complete denture according to any one of claims 1 to 4, characterized in that: The thickness of the filling resin layer (4) is between 0.3 mm and 0.8 mm.

8. The complete denture according to any one of claims 1 to 4, characterized in that: The material of the metal reinforcement layer (3) is set to titanium or titanium alloy or cobalt-chromium alloy.

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